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  <script>
    // 根据下面程序代码， 那个选项的结果为true ?
    //   public class Square {
    //     long width;
    //     public Square(long l) {
    //       width = l;
    //     }
    //     public static void main(String[] args) {
    //     Square a, b, c;
    //     a = new Square(42L);
    //     b = new Square(42L);
    //     c = b;
    //     longs = 42L;
    //   }
    //   }
    // A.a == b  B.S == a      C.b == c   D.a.equals(s);

  </script>
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